/**
 * Copyright 2000 self.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 * 	The greatest achievement is selflessness. The greatest worth is self-mastery.
 * 	The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 * 	The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 * 	The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 * 	The greatest goodness is a peaceful mind. The greatest patience is humility.
 * 	The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 * 	The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 *
 * @author Ashin Wimalajeewa
 */
package self.amigo.elem;

import java.awt.Graphics;
import java.awt.Point;
import java.awt.Rectangle;
import java.util.HashMap;
import java.util.Map;

import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

import self.math.geom.EllipseUtils;

public class EllipseView extends ARectangularLinkable {
	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
  final static public String FILL_PROP = "Fill";
  
  public EllipseView() {
    delegate =  new Essential();
    setDelegate( delegate );
  }

  private class Essential extends ARectangularHandledElement {
  	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
    private FillableFeature  fillData = new FillableFeature();
//    private Ellipse2D.Float     ellipseFig = new Ellipse2D.Float( 10, 10, 80, 40 );
//    private Ellipse2D.Double     ellipseFig = new Ellipse2D.Double( 10, 10, 80, 40 );
    private SerializableEllipse     ellipseFig = new SerializableEllipse( 10, 10, 80, 40 );
    
    public Essential() {
      fig.setBounds( ellipseFig.getFrame().getBounds() );
    }
    
    public void       paint( Graphics surface ) {
//      ((Graphics2D) surface).setStroke( DEFAULT_STROKE );
      if ( !outlineOnly ) {
        if (fillData.fillColor != null) {
          surface.setColor(fillData.fillColor);
          surface.fillOval( (int) fig.x, (int) fig.y, (int) fig.width, (int) fig.height );
        }
      }
      surface.setColor(frameColor);
      surface.drawOval( (int) fig.x, (int) fig.y, (int) fig.width, (int) fig.height );
    }
    
    public boolean getLineIntersectionToCentre( int xFrom, int yFrom, int[] xyPoints ) {
      double[] xyP = new double[2];
      EllipseUtils.getEllipseCentrePointIntersections( fig, xFrom, yFrom, xyP );
      xyPoints[0] = (int) Math.round( xyP[0] );
      xyPoints[1] = (int) Math.round( xyP[1] );
      return true;
    }
    
    public boolean    contains( Point within ) {
      initEllipseFigure();
      return ellipseFig.contains( within );
    }
    
    public boolean    isWithin( Rectangle within ) {
      initEllipseFigure();
      return ellipseFig.intersects( within );
    }
    
    // IEditableElement support
    public void       getProperties( Map store ) {
      store.put( FILL_PROP, fillData.clone() );
    }
    
    public void       setProperties( Map data ) {
      layer.setDirty();
      fillData.set( (FillableFeature) data.get(FILL_PROP) );
    }
    
    // IPersistentElement support
    public void readFrom( Node self, HashMap idObjLookUp ) throws DOMException {
      super.readFrom( self, idObjLookUp );
      fillData.readFrom( self, idObjLookUp );
    }
  
    public void writeTo( Document doc, Element self, HashMap objIdLookup ) throws DOMException {
      super.writeTo( doc, self, objIdLookup );
      fillData.writeTo( doc, self, objIdLookup );
    }
    
    private void initEllipseFigure() {
      ellipseFig.setFrame( fig.x, fig.y, fig.width, fig.height );
    }
  }
}
